Strain torque measurement system

ABSTRACT

A torque sensor assembly is used with a driveline component. The torque sensor assembly includes a holder, a sleeve, and at least one strain sensor. The holder includes a side wall that has a holder outer surface and a holder inner surface. The holder outer surface is corresponding to and attached to an aperture of the driveline component. The sleeve is corresponding to and attached to the holder inner surface. The strain sensor is attached to the sleeve and used to sense a strain in the driveline component.

RELATED APPLICATIONS

N/A.

FIELD OF THE DISCLOSURE

The present disclosure relates generally to a sensor applied to adriveline component to measure the torque thereon.

BACKGROUND OF THE DISCLOSURE

For mechanical powertrain systems, improvements in the measurement ofsystem torques are desirable since variation in torque affects theefficiency and longevity of individual powertrain components. Sincepowertrain torque flow is often split into different paths between andwithin drivetrain components, it is useful to measure the individualtorques that comprise the total input or output torque amplitudes. So,it is desired to develop an inexpensive and accurate reactive torquesensing device that can be easily installed at various locations withina mechanical powertrain system to improve monitoring and/or control ofpowertrain components.

SUMMARY OF THE DISCLOSURE

According to an aspect of the present disclosure, a torque sensorassembly is used with a driveline component. The torque sensor assemblyincludes a holder, a sleeve, and at least one strain sensor. The holderincludes a side wall that has a holder outer surface and a holder innersurface. The holder outer surface is corresponding to and attached to anaperture of the driveline component. The sleeve is corresponding to andattached to the holder inner surface. The strain sensor is attached tothe sleeve and used to sense a strain in the driveline component.

Other features and aspects will become apparent by consideration of thedetailed description and accompanying drawings.

BRIEF DESCRIPTION OF THE DRAWINGS

The detailed description of the drawings refers to the accompanyingfigures in which:

FIG. 1 is a perspective view of a driveline component cooperating with atorque sensor assembly;

FIG. 2 is a cross-sectional view as viewed along view line 2-2 of FIG.1;

FIG. 3A is a cross-sectional view as viewed along view line 3-3 of FIG.2;

FIG. 3B is another embodiment of the sleeve;

FIG. 4 is an exploded view of FIG. 1;

FIG. 5 is a cross-sectional view as showing another embodiment of thesleeve, the holder, and the driveline component;

FIG. 6 is partial exploded view of another embodiment of a torque sensorassembly;

FIG. 7 is a cross-sectional view as viewed along view line 6-6 of FIG.6; and

FIG. 8 is cross-sectional view of another embodiment of a torque sensorassembly;

FIG. 9 is a top view of a strain sensor having a grid pattern; and

FIG. 10 is a perspective view of the strain sensors of FIG. 1.

DETAILED DESCRIPTION OF THE DRAWINGS

Referring to FIGS. 1-2, 3A and 4, a driveline component 10 receives atorque sensor assembly 20 to measure the strain surrounding the torquesensor assembly 20 that will be utilized to calculate the torque. Thedriveline component 10 (including a machine housing) may include but isnot limited to a transmission, gearbox, differential, engine, axlemodules (not shown). The driveline component 10 comprises at least oneaperture 12 that has a recess 14. As shown in FIG. 2, the drivelinecomponent 10 defines an interior region 16 which may further compriseother elements as a shaft, gears, bearings and lubricant oil. Anexterior region 18 is outside driveline component 10. Strains arecreated by (1) the torque resulted from rotation of elements of thedriveline component, such as a bearing that is engaged with a rotatingshaft (not shown), and/or (2) the engagement between multiple gearswhich causes a dynamic reactive torque across the driveline component10, and/or (3) temperature of the driveline component 10 that causesthermal expansion; and/or (4) vibration, movement, acceleration ofdriveline component 10. The non-torque related strains from (2) to (4)shall be filtered or isolated in the torque calculation, or may bereduced or eliminated due to the configuration and/or orientation and/orplacement of the torque sensor assembly 20 which will be describedlater. Due to the aperture 12 of the driveline component 10, a torquesensitive strain area is provided in immediate proximity to or adjacentto the aperture 12. The torque sensitive strain area may be incompressive and/or tensive strain. The relationship between torque andstrain in this application will be introduced later. The aperture 12 ofthe driveline component 10 can be one of a blind hole or through hole.In this embodiment, an analyzer 30 (or can also be called as strainsignal controller, signal analyzer, and torque signal transmitter) ispositioned outside the torque sensor assembly 20 and electricallyconnected to the torque sensor assembly 20 and at least one controller60. The controller(s) 60 may include but not limit to engine controlunit (ECU) 62, transmission control unit (TCU) 64, and chassis controlunit (CCU) 66. The analyzer 30 communicates with ECU 62, TCU 64, CCU 66through Controller Area Network (CAN) 70. CAN frames are normally placedon a CAN Bus 76, which comprises a first signal carrying line 72 and asecond signal carrying line 74. The controller(s) 60 is connected to thefirst and second signal carrying lines 72, 74. The analyzer 30 will bedescribed in more detail later.

The torque sensor assembly 20 includes a holder 22, a sleeve 242, and atleast one strain sensor 26. In this embodiment, the number of the strainsensors 26 is four. The material of the holder 22 for example can bemetal. As shown in FIGS. 2, 3A, and 4, the holder 22 comprises a sidewall 223, which is sleeve-shaped in this embodiment. The side wall 223has a holder outer surface 222, and a holder inner surface 224 parallelto the holder outer surface 222. The holder outer surface 222corresponds and attaches to the aperture 12 of the driveline component10. Optionally, the side wall 223 and the aperture 12 have aninterference fit, that means, the diameter of the aperture 12 isslightly smaller than the diameter of the side wall 223 to ensure theside wall 223 and the aperture 12 are tightly coupled with each other.Alternative to the interference fit, the aperture 12 and the side wall223 may be threaded to engage one another (not shown), or bondedtogether with an adhesive.

The holder 22 may also comprise a flange 226 configured to be positionedin the aperture 12 of the driveline component 10. The aperture 12 of thedriveline component 10, in proximity to the holder 22, may furthercomprise a recess 14 in which the flange 226 is positioned. In theassembling process, the top of the flange 226 is pressed toward therecess 14 and then the bottom of the flange 226 may be engaged with thebottom of the recess 14 to ensure the holder 12, with other elements ofthe torque sensor assembly 20, are completely assembled into theaperture 12.

Optionally, the holder 22 may comprise a holder end wall 228. The sidewall 223 of the holder 22 interconnects the flange 226 and the holderend wall 228 to form a cup-shaped holder as shown in FIG. 4. Thecup-shaped holder 22 may be applied to the aperture 12 when it is athrough-hole as illustrated in an embodiment in FIGS. 1-4 or a blindhole as shown in another embodiment in FIGS. 5, 7 and 8. Alternatively,the holder 22 may not comprise the holder end wall 228 (not shown) whenthe holder 22 is positioned in the aperture 12 which is a blind hole.

Referring again to FIGS. 1, 2, 3A, and 4, the sleeve 242, in thisembodiment, is included in a capsule 24. The sleeve 242 has a sleeveouter surface 2422, and a sleeve inner surface 2424 parallel to thesleeve outer surface 2422. The sleeve outer surface 2422 of the sleeve242 corresponds and attaches to the holder inner surface 224. The sleeve242 is configured for the at least one strain sensor 26 to attach to. Inthis embodiment, the sleeve 242 includes four windows 2426. The side ofeach of the strain sensors 26 is attached to one of the windows 2426 ofthe sleeve 242. The strain sensors 26 are secured on the sleeve 242 viathe interference-fit relationship between the side of the strain sensors26 and the windows 2426 or there is an adhesive gel combines the two. Inthis configuration, the assembling process of the torque sensor assembly20 is simplified because the strain sensors 26 are attached on thesleeve 242 first and then the sleeve 242 carries the strain sensors 26to engage with the holder 22.

Alternatively, in another embodiment of the sleeve 242, as shown in FIG.3B, the sleeve 242 can be an intermediate material to secure therelative positions between the strain sensors 26 and the holder 22. Thesleeve 242 may be one or more curvature segments, such as an adhesive,respectively couple the strain sensors 26 to the holder inner surface244.

In the embodiment as shown in FIGS. 1-2, 3A, and 4, the sleeve 242 maybe coupled to other elements of the capsule 24 to form an interiorregion 248 where at least one strain sensor 26 is partially exposed. Thecapsule 24 may comprise a cap 244 to cover the top opening of the holder22. The cap 244 includes a lid 2441 and a connector 2442 extendingthrough the lid 2441 and configured to be coupled to a analyzer 30. Thelid 2441 is coupled to at least one of the upper part of the sleeve 242,and/or upper part of the side wall 223 of the holder 22. In thisembodiment, the circumference of lid 2441 and the upper part of thesleeve 242 are threaded and therefore the lid 2441 and the sleeve 242can be engaged. Alternatively, the lid 2441 of the cap 244 may becoupled to the upper part of the side wall 223 which has an opening viainterference fit (the interference fit/snap fit features are shown inFIGS. 6-8). The capsule 24 may also comprise capsule end wall 246. Theinterior region 248 is enclosed/encapsulated by the sleeve 242, the cap244, and the capsule end wall 246, as shown in FIG. 2. In anotherembodiment (not shown), if there is no capsule end wall 246 but there isthe holder end wall 228, the interior region 248 is enclosed by thesleeve 242, the cap 244, and the holder end wall 228. In anotherembodiment (not shown), if there is no capsule end wall 246 nor holderend wall 228, but the torque sensor assembly 20 is positioned in theaperture 12 that is a blind hole, the interior region 248 is enclosed bythe sleeve 242, the cap 244, and the bottom of the blind hole.

The strain sensors 26 are electrically coupled to a connector 2442 ofthe cap 244 via conductors 262. The conductors 262 are configured tocommunicate power to the strain sensors 26 or transmit signalsindicative of the strains measured by the strain sensor 26, or both. Thedetails and types of the strain sensors 26 will be introduced later withFIGS. 9 and 10. The signals indicative of the strains are received bythe analyzer 30 as shown in FIG. 1. It is noted that, within a range ofstrain measured at least partially within the aperture 12, the strain issubstantially correlative to (e.g. substantially linear to) the torqueapplied on axle/shaft of the driveline component 10. The strain measuredby the torque sensor assembly 20 is calculated by the analyzer 30 toobtain the torque value. It is noted that before the analyzer 30processes the data, a signal conditioning module 50 that may beintegrated into the analyzer 30 or remain as stand-alone componentpositioned inside or outside the interior region 248 and coupled to theanalyzer 30, conditions the data from the strain sensors 26 for theanalyzer 30 to process. In this embodiment, the signal conditioningmodule 50 is positioned outside the interior region 248. The details ofthe analyzer 30 and the signal conditioning module 50 are describedbelow.

Referring to FIGS. 1 and 10, the signal conditioning module 50 mayprovide an excitation current and/or excitation voltage (V_(EX)), or abias signal to power the strain sensor(s) 26. The strain sensors 26 inthis embodiment are resistance strain sensors. The signal conditioningmodule 50 then reads the signal (voltage or current or resistance) fromthe strain sensor(s) 26 and sends the signal to the analyzer 30. Theanalyzer 30 then performs calculations on the signal and then sends thatmodified or analyzed signal (e.g. a signal indicative of torque) viawire connection to other devices that display the analyzed signal(torque) or to the controller 60 that can make decisions with the torquesignal. If the controller 60 is the engine control unit 62, it receivesthe modified or analyzed signal (e.g. a signal indicative of torque)from the analyzer 30 and determines the engine operative performance. Ifthe controller 60 is the transmission control unit 64, it receives themodified or analyzed signal from the analyzer 30 and determines whetherto adjust an output shaft rotational speed via switching the engagementof gears. Likewise, the torque sensor assembly 20 may be applied toother controller to change the rotational speed or gear engagement ofthe other types of driveline components 10. Alternatively, the analyzer30 can be integrated in one of the controllers 60 (not shown).

Referring to FIGS. 1-2, 3A, and 4, it is noted that the interior region248 may accommodate a potting material 2482. The potting material 2482could be chemical compound such as epoxy. For clarity, in thisembodiment, FIGS. 2, 3A omits the potting material 2482 but it is shownin FIG. 4. The connector 2442 comprises a first piece 2442 a and asecond piece 2442 b coupled to the first piece 2442 a such that the lid2441 is positioned or clamped therebetween. When the potting material2482 is injected into the interior region 248, the potting material 248is liquid and fills the interior region 248 without interfering with theconductors 262. One end of each of the conductors 262 is coupled to oneof sensor inner surfaces 266 of the strain sensors 26 and the other endof each of the conductors 262 is coupled to the first piece 2442 a ofthe connector 2442. Before or after the potting material 2482 issolidified, the first piece 2442 a and the second piece 2442 b of theconnector 2442 are combined to clamp the lid 2441 and the lid 2441 iscoupled to the sleeve 242.

Referring again to FIGS. 1-2, 3A, and 4, the torque sensor assembly 20may include a temperature sensor 28. In this embodiment, the temperaturesensor 28 is at least partially positioned in the interior region 248 ofthe capsule 24 and partially positioned in the interior region 16 of thedriveline component 10. Because the temperature of the drivelinecomponent 10 may influence the strain and therefore affect the torquecalculation, a signal indicative of the temperature is transmitted tothe analyzer 30 via the connector 2442 and output line 2444.

The temperature sensor 28 in FIG. 3A may be optional. In anotherembodiment, as shown in FIG. 5, there is no temperature sensor 28. Theend wall 228 is engaged with the bottom of the aperture 12 which is ablind hole in this embodiment.

In another embodiment, as shown in FIGS. 6 and 7, the sleeve 242 is aprinted circuit board (PCB) electrically coupled to at least one strainsensor 26. Optionally, in the embodiment, a flexible printed circuitboard (FPCB) is chosen. Due to the flexibility of the printed circuit,the sleeve 242 in this embodiment is configured to be bended such thatthe sleeve outer surface 2422 and holder inner surface 224 can beengaged. Here, the strain sensors 26 are electrically coupled to theprinted circuit board via conductors 262, such as traces, partiallyintegrated within the printed circuit board. The sensor outer surface264 is attached to the sleeve inner surface 2424. The potting material2482 is omitted in FIGS. 6 and 7. The connector 2442 comprises the firstpiece 2442 a and second piece 2442 b. The conductors 262 (e.g. traces)are collected by the first piece 2442 a of the connector 2442. The firstpiece 2442 a printed on the FPCB is partially coupled to a third piece2442 c. The second piece 2442 b is partially inserted into the lid 2441of the cap 244 and further engaged with the third piece 2442 c. The lid2441 in this embodiment is coupled to the upper part of the side wall223. The bottom of the lid 2241 has a protrusion that is snapped intothe opening of the holder 22. Depending on the design of the conductors262 (traces) of the sleeve 242, the first piece 2442 a of the connector2442 may be positioned adjacent to the ends of most of the conductors262 to collect the strain data. Therefore, the connector 2442 may not bepositioned through the center of the lid 2441.

Referring to FIG. 8, contrary to the embodiments of FIGS. 1-7 thatdemonstrate the connector 2442 and the output line 2444 transmitting thedata/signal to the analyzer 30, this embodiment utilizes wirelessapproach. In this embodiment, the analyzer 30 is positioned inside thetorque sensor assembly 20 as part of the torque sensor assembly 20 andwirelessly connected to at least one controller 60, including ECU 62,TCU 64, CCU 66. The strain sensors 26 transmit signals indictive ofstrain they measured to the signal conditioning module 50. The signalconditioning module 50, as described in previous embodiment, conditionsthe signal and transmits the signal to the analyzer 30. The analyzer 30modifies the signal indicative of strain into an appropriate formatand/or analyzes the signal indicative of strain to calculate the torqueas described previously. The modified or analyzed signal (e.g. a signalindicative of torque) is transmitted wirelessly via a transmitter 40.The transmitter 40 is a telematic transmitter that transmits a radiosignal to an RF receiver 78 (radio frequency receiver). The RF receiver78 in this embodiment is a WiFi type of receiver. The RF receiver 78 canstore or retransmit the signal indicative of the torque to at least onecontroller 60 such as ECU 62, TCU 64, CCU 66 via CAN bus 76. Alternativeto the embodiment as shown in FIG. 8, if the analyzer 30 is coupled tothe CAN bus 76, the transmitter 40 transmits a signal indicative of thestrain to the RF receiver 78 and the analyzer 30 receives the signalindicative of the strain from the RF receiver 78. The analyzer 30modifies and analyzes the signal indicative of the strain and calculatethe torque value. The signal indicative of torque will be sent to othercontroller 60 on the CAN bus 76.

Referring to FIG. 8, the torque sensor assembly 20 may include at leastone battery module (not shown) that provides power for at least one ofthe signal conditioning module 50 to condition the signal indicative ofthe strain, for the analyzer 30 to modify and/or to analyze theconditioned signal and/or to calculate the torque, and for thetransmitter 40 to transmit the signal indicative of torque to thecontroller 60. The at least one battery module may be a stand-alonecomponent electrically coupled to at least one of the signalconditioning module 50, the analyzer 30, and the transmitter 40.Alternatively, the at least one battery module may be included by thesignal conditioning module 50, the analyzer 30, and the transmitter 40.The battery module may be disposable or rechargeable. Referring to FIG.8, the torque sensor assembly 20 may also include a power supply 80attached to the holder end wall 228. The power supply 80 is aself-powered power supply/source (e.g. piezoelectric power source) thatgenerates energy when the holder end wall 228 moves, such as vibrationand extension. The at least one battery module is rechargeable if it iscoupled to the power supply 80 and therefore the operator does not haveto replace the battery module. Alternatively, the power supply 80 iscoupled to at least one of the signal conditioning module 50, theanalyzer 30, and the transmitter 40 directly provides the necessarypower without the battery module.

The type of the strain sensors 26, as described above, may be various.In the embodiment of FIGS. 1, 2, 3A, and 4, the strain sensors 26 areresistance strain sensors, but they can be other types of strainsensors. FIG. 9 demonstrates a simple structure of a strain sensor 26.The strain sensor 26 has a grid pattern 261 and a carrier 263 whichcarries the grid pattern 261 (e.g. bonded foil). The two leads at theends of the grid pattern 261 may be electrically connected with multipleresistances and an excitation voltage to form a quarter-bridge strainsensor circuit (not shown). Via the principle of Wheatstone Bridge, theresistance of the grid pattern 261 of the strain sensor 26 isdetermined. The resistance of the grid pattern 261 depends on the strainof the grid pattern 261. Alternatively, the circuit may include morethan one strain sensors 26 and therefore have more than one gridpatterns 261. For example, if there are two strain sensors 26, ahalf-bridge strain sensor circuit is formed. If there are four strainsensors 26, a full-bridge strain sensor circuit is formed.

In the embodiment of FIGS. 1, 2, 3A, and 4, the strain sensors 26 form afull-bridge configuration. FIG. 10 demonstrates a full-bridge strainsensor circuit which includes the strain sensors 26 and the excitationvoltage V_(EX) provided by the signal conditioning module 50. Since thefour strain sensors 26 are positioned in different locations anddifferent orientations on the sleeve, four grid patterns 261 a-261 d arerespectively assigned to the strain sensors 26. The four grid patterns261 a-261 d are electrically coupled to one another. In a connectionbetween the grid patterns 261 a and 261 d, and in another connectionbetween the grid pattern 261 b and 261 c, provide the excitation voltageV_(EX) driving the current through the circuit. The first piece 2442 aof the connector 2442 is electrically coupled to a connection betweenthe grid patterns 261 a and 261 b, and to another connection between thegrid pattern 261 c and 261 d; the potential voltage difference betweenthe two connections may be used to measure the strain of the strainsensor 26.

It is noted that different orientations of the grid patterns 261 a-261 dmay be able to reduce extraneous strains. For example, in thisembodiment, due to the orientation of the grid pattern 261 b, 261 d areperpendicular to the grid pattern 261 a, 261 c, and strain caused by thetemperature both directions and therefore the changes in resistancesbased on the temperature in the entire circuit is reduced. Thecircuit/network may be used to equalize some of other non-torque relatedstrain signal.

The strain sensor(s) 26 can be various. Aside from the resistance strainsensors, the strain sensors 26 may be piezoelectric strain sensors,piezoresistive strain sensors, nanoparticle strain sensors, etc. Sometypes of strain sensors, such as piezoelectric strain sensors, areself-powering and therefore no excitation voltage/battery may be needed.Some types of strain sensor may need a power source.

It is noted that it is possible to utilize multiple torque sensorassemblies 20 applied on the driveline component 10 to measure thestrain distribution on the housing of the driveline component 10 tocalculate the torque. This may be beneficial for product design. Inaddition, the analyzer 30 may be coupled to an accelerometer tocalculate a dynamic torque.

Optionally, in order to obtain a precise torque measurement, a designeror an operator may (1) apply multiple torque sensor assemblies on adriveline component; (2) utilize a full bridge strain sensorcircuit/network; (3) adjust the direction/orientation of the gridpattern of the strain sensor in a direction that may sense lessnon-torque strain or the strain from that direction may be calibrated byanother grid pattern of the same or another strain sensor, etc.

The torque sensor assemblies may also be used to detect debris goingthrough the teeth of gear sets or through the rolling elements ofbearings that can generate distinct strain signals that may be used toperform component wear analysis.

Without in any way limiting the scope, interpretation, or application ofthe claims appearing below, a technical effect of one or more of theexample embodiments disclosed herein is to provide a torque sensorassembly that measures the torque applied on the driveline componentthrough detecting of the strain adjacent to the torque sensor assemblyvia at least one strain sensor. Another technical effect of one or moreof the example embodiments disclosed herein is to provide the structureof the torque sensor assembly that is easy to assemble and install intoits component.

While the above describes example embodiments of the present disclosure,these descriptions should not be viewed in a limiting sense. Rather,other variations and modifications may be made without departing fromthe scope and spirit of the present disclosure as defined in theappended claims.

What is claimed is:
 1. A torque sensor assembly for use with a drivelinecomponent, the torque sensor assembly comprising: a holder comprising aside wall that comprises a holder outer surface and a holder innersurface, the holder outer surface configured to correspond and attach toan aperture of the driveline component; a sleeve corresponding andattached to the holder inner surface; and at least one strain sensorattached to the sleeve and configured to sense a strain in the drivelinecomponent.
 2. The torque sensor assembly of claim 1, wherein the holdercomprises a flange, and the flange is positioned in the aperture of thedriveline component.
 3. The torque sensor assembly of claim 2, whereinthe aperture of the driveline component comprises a recess in which theflange is positioned.
 4. The torque sensor assembly of claim 2, whereinthe holder comprises a holder end wall, a side wall interconnects theflange and the holder end wall, and the sleeve corresponds and isattached to the side wall.
 5. The torque sensor assembly of claim 1,comprising a capsule, wherein the sleeve is included in the capsule, andthe at least one strain sensor is exposed to an interior region of thecapsule.
 6. The torque sensor assembly of claim 1, comprising atemperature sensor coupled to the holder and configured to determine atemperature of the driveline component.
 7. The torque sensor assembly ofclaim 1, wherein the sleeve comprises a window, a side of the at leastone strain sensor is attached to the window of the sleeve, and the atleast one strain sensor comprises a sensor outer surface coupled to theholder inner surface.
 8. The torque sensor assembly of claim 1,comprising a capsule and a temperature sensor, wherein the holdercomprises a holder end wall, the sleeve is included in the capsule, thecapsule comprises a capsule end wall attached to the holder end wall,and the temperature sensor is positioned through the holder end wall andthe capsule end wall so as to be exposed to an interior region of thedriveline component.
 9. The torque sensor assembly of claim 1,comprising a cap coupled to at least one of the sleeve and the holder.10. The torque sensor assembly of claim 9, comprising a capsule, whereinthe cap and the sleeve are included in the capsule, the capsulecomprises a capsule end wall, the sleeve interconnects the cap and thecapsule end wall, and the strain sensor is exposed to an interior regionof the capsule.
 11. The torque sensor assembly of claim 10, comprising apotting material positioned in the interior region.
 12. The torquesensor assembly of claim 10, comprising a temperature sensor partiallypositioned in the interior region of the capsule and partiallypositioned in an interior region of the driveline component.
 13. Thetorque sensor assembly of claim 10, wherein the cap comprises a lid anda connector extending through the lid and configured to be coupled to ananalyzer, and the connector comprises a first piece and a second piececoupled to the first piece such that the lid is positioned therebetween,and the at least one strain sensor is electrically coupled to theconnector.
 14. The torque sensor assembly of claim 1, comprising atelematic transmitter electrically coupled to the at least one strainsensor and configured to transmit a signal indicative of the strain nearthe torque sensor assembly on the driveline component to an analyzer.15. The torque sensor assembly of claim 1, comprising an analyzercoupled to the at least one strain sensor and configured to analyze asignal indicative of the strain near the torque sensor assembly on thedriveline component from the at least one strain sensor and to calculatea torque corresponding to the strain.
 16. The torque sensor assembly ofclaim 15, comprising a telematic transmitter electrically coupled to theanalyzer and configured to transmit a signal indicative of the torquenear the torque sensor assembly on the driveline component from theanalyzer to a controller to control the driveline component.
 17. Thetorque sensor assembly of claim 16, comprising a power-supply coupled toat least one of the analyzer and the telematic transmitter andconfigured to generate power during the movement of the drivelinecomponent, and to provide the power to at least one of the analyzer andthe telematic transmitter.
 18. The torque sensor assembly of claim 16,comprising a signal conditioning module connected to the at least onesensor and the analyzer and configured to condition the signalindicative of the strain near the torque sensor assembly on thedriveline component from the at least one sensor before the signalindicative of the strain is received by the analyzer.
 19. The torquesensor assembly of claim 1, wherein the at least one strain sensorcomprises a plurality of strain sensors.
 20. The torque sensor assemblyof claim 19, wherein the sleeve is a printed circuit board electricallycoupled to the plurality of strain sensors via traces.
 21. The torquesensor assembly of claim 19, wherein the plurality of the strain sensorsare positioned evenly on a sleeve inner surface of the sleeve andcoupled to one of a telematic transmitter or a connector.
 22. The torquesensor assembly of claim 19, wherein the plurality of strain sensorsform a full bridge network.